The time he has devoted in the past years _____________ the disabled is now thought to be ________ great value __________ him.
| A．to help; of; for | B．to helping; of; to |
| C．to help; in; of | D．to helping; /; to |
We can’t work out the physics problem. Can you tell us _________?
| A．how to do | B．what to do it |
| C．how to do it | D．what should to do |
I’m now in New York with my friend Jenny. We _________ by plane on Monday.
| A．arrive | B．arrived |
| C．are arriving | D．will arrive |
Since2000, it has become a new town. Everything _________.
| A．changed | B．was changed |
| C．had changed | D．has changed |
–Dave, we will leave in10 minutes. Are you ready?
– No, I ________ our guide book and towels yet.
| A．don’t pack | B．didn’t pack |
| C．have packed | D．haven’t packed |
–What does she usually use the computer _________?
– She usually uses it to chat with her friends.
| A．to | B．on | C．for | D．about |